Not much is known about Rick Amsler, but it is known that he was once the leader of a Spartan II team on Reach. Shortly after Reach's fall, he was listed MIA, but somehow he survived, most likely through escaping on a Seraph or some other similar ship before it was glassed, abandoning his team in the process. He had since become lone wolf with no team to lead, and he has been known to be the bane of Elites, thanks to his skill with the energy sword. He likes to destroy targets before he is told, and he commonly dons a cape to conceal his torn up armor and his identity, and as a Lt. Colonel, he chose a special armor with different coloring to show his minor separation from the UNSC ranks.